Question

Explain the following terms.
a. Rotation
b. Orbital plane
​

Answer 1

The orbital plane of a revolving body is the geometric plane in which its orbit lies. Three non-collinear points in space suffice to determine an orbital plane. A common example would be the positions of the centers of a massive body (host) and of an orbiting celestial body at two different times/points of its orbit.

this orbital plane

A rotation is a circular movement of an object around a center (or point) of rotation. A three-dimensional object can always be rotated about an infinite number of imaginary lines called rotation axes

this is rotation

Answer 2

a)the action of rotating about an axis or centre